From what I think is because laws weren't placed to protect people/workers, since owners pays close attention to money instead of the health of their workers.
Answer:
a drawing of Henry Moore
Explanation:
I THINK,,, DONT COUNT ON ME
The factor that increased is "Legislation that removed unfair electoral requirements"
In 1960 only 5% of African Americans were registered to vote
The arrival of the Indo-Europeans in the Near East made huge changes in the region with long lasting effects. After their arrival, the region started to develop significantly, multiple strong empires were formed, empires that were developing the sciences, the weapons, the culture, politics, empires that managed to spread all of these things around and change the way of thinking and functioning of the whole region, and later on, on a much larger scale.